Finding the Fourth Proportional to 256,297.16, 353,688.66 and 141,583.68
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Solution
The fourth proportional to 256,297.16, 353,688.66 and 141,583.68 is: 195,384.70
Step by Step Solution
- Step 1: Write the proportion equation
256,297.16 : 353,688.66 = 141,583.68 : x - Step 2: Convert to fraction form
256,297.16/353,688.66 = 141,583.68/x - Step 3: Cross multiply
256,297.16x = 353,688.66 × 141,583.68 - Step 4: Simplify right side
256,297.16x = 50,076,542,057.07 - Step 5: Solve for x
x = 50,076,542,057.07/256,297.16 - Step 6: Final answer
x = 195,384.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.